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Assuming data come from a random sample, under which of the following conditions should we notcalculate a confidence interval for a population mean?
A. Population is normally distributed and sample size is 50 individuals.B. Population distribution is unknown and sample size is 20 individuals.C. Population is normally distributed and sample size is 20 individuals.D. Population distribution is unknown and sample size is 50 individuals.
If new inspector measures 101 stampings with variance of 0.13 square inch, test at 0.05 level of significance whether inspector is making satisfactory measurements. Suppose normality.
x is a normally distributed random variable with mean 10 and variance 24.find px gt 14.find p8 lt x lt 20.find the
Why did people create very different religious structures? Why were some monotheistic and others polytheistic?
at a large department store the average number of years of employment for a cashier is 5.7 with a standard deviation
a computer terminal can pick up an erroneous signal from the keyboard that does not show up on the screen. this creates
q1 define what the chi square distribution is. why do you use the chi-square statistic? what type of data is used
If the following expression (5t+5)/(2t+5) is to make sense, the values that t can take must be restricted. State the restriction on it.
What do we mean by the gradient of a scalar function and What does the divergence of a vector signify?
a new screening test for a disease has a sensitivity score of .89. which of the following statements are true of this
Calculate for each of the first three states the annual premium and the reserve at time t. Write down the Thiele differential equations. Verify that your answers to (a) satisfy the equations in (b).
Find a 95% confidence interval for the true proportion of patients who experienced cotton mouth. Show your calculations and/or explain the process used to obtain the interval.
Iit is known that signal change in this brain area is normally distributed with mean of 35 and standard deviation of 10. By using .01 level, what must researcher conclude?
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